most of us what we were using a few years ago. nick has the story from sacramento. >> it was simple those old devices we were in awe of. we were able to get a record player, a walk man, a reel to reel recorder. a rotary phone, type writer and polaroid camera. then line up all that babbling in the day that was worth hundreds of dollars and just wait for priceless responses. >> all these second and third-graders are from the boys and girls club in sacramento. none of them know about our hidden camera. >> it's weird. >> it's camera. >> like in the army, if they wanted to type it like that. >> it's when you touch one it moves. [ laughter ] >> oh, yes, we heard that jacob. >> what do you think? >> i was thinking i could get a genie out of here. >> it's called a record. >> a record. >> who do you think would use something like that back in the old days? >> i think god. [ laughter ] >> that is cassette tape. >> oh, yes, it says right here. >> this whole thing is called a walkman. >> it's not able to walk. >> it could be a walk woman if y